67815-71-8 Azelaic acid, neopentyl glycol, trimellitic anhydride polymer Azelaic acid, neopentyl glycol, trimellitic anhydride resin Neopentyl glycol, azelaic acid, trimelitic anhydride polymer Nonanedioic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid and 2,2-dimethyl-1,3-propanediol